Question

O GEOMETRYCircumference and area of a circleFind the circumference and the area of a circle with radius 4 m.Use the value 3.14 forn, and do not round your answers. Be sure to include the correct units in your answersCircumference:Areas

Answer 1

The radius is 4m. We'll use 3.14 for pi:

The circumference is:

C=2pir

C= 2*3.14*4

C= 25,12m

The area is:

A=pir²

A=3.14*4²

A= 3.14*16

A = 50,24m²